CA2185762A1 - Process for the Recovery of Waste Sulphuric Acid - Google Patents

Process for the Recovery of Waste Sulphuric Acid

Info

Publication number
CA2185762A1
CA2185762A1 CA2185762A CA2185762A CA2185762A1 CA 2185762 A1 CA2185762 A1 CA 2185762A1 CA 2185762 A CA2185762 A CA 2185762A CA 2185762 A CA2185762 A CA 2185762A CA 2185762 A1 CA2185762 A1 CA 2185762A1
Authority
CA
Canada
Prior art keywords
sulphuric acid
stream
recovery
acid
waste sulphuric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA2185762A
Other languages
French (fr)
Other versions
CA2185762C (en
Inventor
Gordon M. Cameron
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Noram Engineering and Constructors Ltd
Original Assignee
Cecebe Technologies Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cecebe Technologies Inc filed Critical Cecebe Technologies Inc
Publication of CA2185762A1 publication Critical patent/CA2185762A1/en
Application granted granted Critical
Publication of CA2185762C publication Critical patent/CA2185762C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G49/00—Compounds of iron
    • C01G49/14—Sulfates
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • C01B17/69—Sulfur trioxide; Sulfuric acid
    • C01B17/90—Separation; Purification
    • C01B17/901—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids
    • C01B17/904—Recovery from spent acids containing metallic ions, e.g. hydrolysis acids, pickling acids by ion-exchange

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Heat Treatment Of Water, Waste Water Or Sewage (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

A process for concentrating a waste sulphuric acid stream containing metal sulphates including iron sulphate comprises the steps of subjecting the stream to an ion exchange operation to produce an acid-rich stream and a salt-rich stream and, concentrating the acid-rich stream to produce a concentrated sulphuric acid stream.
CA002185762A 1995-09-18 1996-09-17 Process for the recovery of waste sulphuric acid Expired - Fee Related CA2185762C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US08/529,771 US5603839A (en) 1995-09-18 1995-09-18 Process for the recovery of waste sulphuric acid
US08/529,771 1995-09-18

Publications (2)

Publication Number Publication Date
CA2185762A1 true CA2185762A1 (en) 1997-03-19
CA2185762C CA2185762C (en) 1999-05-04

Family

ID=24111193

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002185762A Expired - Fee Related CA2185762C (en) 1995-09-18 1996-09-17 Process for the recovery of waste sulphuric acid

Country Status (5)

Country Link
US (1) US5603839A (en)
AU (1) AU704554B2 (en)
CA (1) CA2185762C (en)
GB (1) GB2305425B (en)
ZA (1) ZA967881B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
MXPA02003701A (en) 2001-04-17 2005-11-28 Sbr Ventures Llc Process to remove ferric iron impurities from an acidic aqueous solution used in the electro-winning of copper.
EP2053147A1 (en) * 2007-10-23 2009-04-29 Teijin Aramid B.V. Method for spinning and washing aramid fiber and recovering sulfuric acid
AT514275B1 (en) * 2013-05-07 2015-05-15 Andritz Tech & Asset Man Gmbh Process for the production of salts with reduced content of water of crystallization
CN111517397A (en) * 2020-06-01 2020-08-11 江苏泰特联合环保科技有限公司 Titanium white waste sulfuric acid three-stage type negative pressure evaporation crystallization treatment process and device
WO2022104737A1 (en) * 2020-11-20 2022-05-27 成都千砺金科技创新有限公司 Production method for full resource recycling of wastewater from sulfuric-acid-method-based titanium dioxide production

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2098056A (en) * 1936-02-15 1937-11-02 Du Pont Utilization of waste products in the manufacture of titanium compounds from titanium ores
US2185095A (en) * 1938-10-29 1939-12-26 Chemical Construction Corp Regeneration of waste ferrous sulphate liquor
US2662812A (en) * 1949-11-03 1953-12-15 Koppers Co Inc Regeneration of spent pickle liquor and recovery of ferrous sulfate monohydrate
US2946659A (en) * 1958-05-15 1960-07-26 Puriron And Chemicals Inc Production of new sulfuric acid from waste pickle liquor
US3001854A (en) * 1959-05-18 1961-09-26 Glidden Co Method for purifying titanium sulfate solutions
US3067007A (en) * 1960-01-27 1962-12-04 Dow Chemical Co Separation of strong polybasic acids from their salts
US3306702A (en) * 1962-06-18 1967-02-28 Nalco Chemical Co Removal of metal salt contaminants from acidic aqueous liquids
GB1119236A (en) * 1965-06-24 1968-07-10 Chemical Construction Corp A method for the recovery of iron salts and sulphonic acid from spent pickle liquors
US3388058A (en) * 1966-08-03 1968-06-11 Nalco Chemical Co Treatment of acid mine water waste
US3388059A (en) * 1967-08-28 1968-06-11 Nalco Chemical Co Acid water treating process
US3743484A (en) * 1969-12-30 1973-07-03 Daido Chem Eng Corp Regeneration of sulfuric acid pickling waste
US3689217A (en) * 1970-06-15 1972-09-05 Inventa Ag Process for freeing 55-85% sulphuric acid from its impurities due to metals and/or semi-metals
US3725259A (en) * 1970-12-04 1973-04-03 Aerojet General Co Process for recovery of mineral pollutants from acidic waste streams
US3713786A (en) * 1971-12-06 1973-01-30 New Jersey Zinc Co Evaporative sulfuric acid recovery from sulfuric acids containing sulfates
GB1357980A (en) * 1972-08-18 1974-06-26 British Titan Ltd Pigment production process
DE2352701A1 (en) * 1973-10-20 1975-06-12 Hoechst Ag PROCESS FOR CONCENTRATING SALTY, DILUTED SULFUR ACID
US4043804A (en) * 1976-06-16 1977-08-23 The Anaconda Company Recovery of metal values from copper reverberatory slag
US4125596A (en) * 1977-04-19 1978-11-14 Ryabenko Evgeny A Method of producing sulphuric acid
JPS59162108A (en) * 1983-03-03 1984-09-13 Tadao Nagai Washing of solution of sulfuric acid
DE3726047A1 (en) * 1987-08-06 1989-02-16 Bayer Ag METHOD FOR SEPARATING METAL SULFATES FROM SULFURIC ACID
JP2650065B2 (en) * 1989-08-21 1997-09-03 ペルメレック電極株式会社 Recovery method of sulfuric acid
DE3927751A1 (en) * 1989-08-23 1991-02-28 Bayer Ag METHOD FOR CONCENTRATING SULFURIC ACID CONTAINING METAL SULFATE
DE4029737C1 (en) * 1990-09-20 1991-12-05 Metallgesellschaft Ag, 6000 Frankfurt, De
US5275701A (en) * 1993-03-15 1994-01-04 Air Products And Chemicals, Inc. Process for purification and concentration of sulfuric acid

Also Published As

Publication number Publication date
GB9619452D0 (en) 1996-10-30
US5603839A (en) 1997-02-18
ZA967881B (en) 1997-05-13
AU704554B2 (en) 1999-04-29
AU6569996A (en) 1997-03-20
GB2305425B (en) 1999-04-14
CA2185762C (en) 1999-05-04
GB2305425A (en) 1997-04-09

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Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20150917